Estimates how this repertoire would score against the field
at a chosen Elo: you play your prepared moves, opponents play the real move distribution,
and results propagate up the tree. Unprepared replies score at the field's own rate.
Positions with fewer than 5 games are reported as insufficient, never guessed.
First run is slow (one explorer call per line, rate-limited); cached after.
Report
Recall scores
How well you know your own moves, from drilling in Spar. Mastery weights a Spar attempt 3× a trainer one — weakest first, since earlier moves matter most.
Raw PGN paste / bulk-edit
Rating & time controls
Rating band
Time controls
Spar opponent
On: drill your exact prep — the opponent only answers with moves you've prepared against, until the line runs out. Off: it samples the real field below.
Used when Spar mode is on — the opponent samples replies from real games in
the chosen band; the floor filters out very rare junk picks. Also sets the field band shown in Repertoire mode.
Save to repertoire
Add PGN paste a study or game — we'll merge it in
If a line gives you more than one move at a position, keep…
Where the PGN differs from a move you already play, the import wins — your old line there is replaced. New moves land yellow; review, then Save.